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I get a NPE exception to occur occasionally when saving a file when my java projects src folder is linked to a remote folder on an ftp. It generally happens when I save the file and notice a mistake, fix it quickly and do another save. The save looks like Eclipse is frozen and if you wait 1-2 mins then you will get the NPE error. java.lang.NullPointerException at java.io.BufferedOutputStream.flushBuffer(Unknown Source) at java.io.BufferedOutputStream.flush(Unknown Source) at java.io.FilterOutputStream.close(Unknown Source) at org.eclipse.rse.internal.services.files.ftp.FTPService$FTPBufferedOutputStream.close(FTPService.java:203) at org.eclipse.core.internal.utils.FileUtil.safeClose(FileUtil.java:193) at org.eclipse.core.internal.utils.FileUtil.transferStreams(FileUtil.java:246) at org.eclipse.core.internal.localstore.FileSystemResourceManager.write(FileSystemResourceManager.java:903) at org.eclipse.core.internal.resources.File.internalSetContents(File.java:319) at org.eclipse.core.internal.resources.File.setContents(File.java:358) at org.eclipse.core.internal.resources.File.setContents(File.java:458) at org.eclipse.core.internal.filebuffers.ResourceTextFileBuffer.commitFileBufferContent(ResourceTextFileBuffer.java:361) at org.eclipse.core.internal.filebuffers.ResourceFileBuffer.commit(ResourceFileBuffer.java:325) at org.eclipse.jdt.internal.ui.javaeditor.DocumentAdapter.save(DocumentAdapter.java:424) at org.eclipse.jdt.internal.core.CommitWorkingCopyOperation.executeOperation(CommitWorkingCopyOperation.java:123) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:720) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:785) at org.eclipse.jdt.internal.core.CompilationUnit.commitWorkingCopy(CompilationUnit.java:354) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.commitWorkingCopy(CompilationUnitDocumentProvider.java:1302) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$5.execute(CompilationUnitDocumentProvider.java:1367) at org.eclipse.ui.editors.text.TextFileDocumentProvider$DocumentProviderOperation.run(TextFileDocumentProvider.java:129) at org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation.execute(WorkspaceModifyDelegatingOperation.java:68) at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:101) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797) at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:113) at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:73) at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:63) at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:450) at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:761) at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:4716) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSave(CompilationUnitEditor.java:1216) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave(CompilationUnitEditor.java:1269) at org.eclipse.ui.texteditor.AbstractTextEditor$TextEditorSavable.doSave(AbstractTextEditor.java:6779) at org.eclipse.ui.Saveable.doSave(Saveable.java:212) at org.eclipse.ui.internal.SaveableHelper.doSaveModel(SaveableHelper.java:339) at org.eclipse.ui.internal.SaveableHelper$2.run(SaveableHelper.java:185) at org.eclipse.ui.internal.SaveableHelper$4.run(SaveableHelper.java:266) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:369) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:313) at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:758) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:755) at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2451) at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:274) at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:253) at org.eclipse.ui.internal.SaveableHelper.saveModels(SaveableHelper.java:196) at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:136) at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1345) at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3184) at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3197) at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:73) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:475) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:429) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:165) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:821) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:879) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:568) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:510) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:126) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1141) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:937) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:975) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:971) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1285) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3772) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3672) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:291) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4351) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2264) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3291) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:153) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:504) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443) at org.eclipse.equinox.launcher.Main.run(Main.java:1169) -----------Enter bugs above this line----------- TM 2.0.1 Testing installation : eclipse-sdk-3.3 RSE install : RSE 2.0.1RC2 java.runtime : Sun 1.6.0-b105 os.name: : Windows XP 5.1, Service Pack 2 ------------------------------------------------
Javier can you investigate? Perhaps Eclipse tries to close the file twice. FYI, as far as I know Kevin is working on a JDT Java project shared from an FTP-based remote EFS folder. Let us know if you need any advice how to setup / reproduce the issue. Kevin, for you the setup is already done -- if you have any idea what's going wrong or you could debug the issue (e.g. set a Java Exception Breakpoint to catch NPE, then see what's going wrong) that would also be helpful.
I worked on my project more and haven't been able to hit this again. I was using my main machine though and I originally had this happen twice on my laptop. I'll try using my laptop next time I use EFS.
Kevin, want to mark that WORKSFORME? It's a year old now...
Since I haven't hit this since, I agree. Marking WORKSFORME.
